Table 4 Bivariable and multivariable Weibull inverse gaussian shared frailty analysis for determinants of time to first antenatal booking in Ethiopia, EDHS 2019(n = 3917)
Variable | Categories | Coef | Acceleration factor (Ï•) | 95% CI for Ï• | P-value |
|---|---|---|---|---|---|
Age | 15–24 |  |  | 1 | 1 |
25–34 | -0.0152 | 0.985 | [0.956, 1.015] | 0.317 | |
35–49 | -0.0057 | 0.994 | [0.951, 1.039] | 0.801 | |
Residence | Urban | Â | Â | 1 | 1 |
Rural | 0.1051 | 1.111 | [1.060, 1.164] | 0.000 | |
Mother Educational level | No education | Â | Â | 1 | 1 |
Primary | -0.0561 | 0.945 | [0.915, 0.977] | 0.001 | |
Secondary and above | -0.1546 | 0.857 | [0.819, 0.896] | 0.000 | |
Wealth index | Poor | Â | Â | 1 | 1 |
Middle | -0.0536 | 0.948 | [0.911, 0.986] | 0.008 | |
Rich | -0.1004 | 0.904 | [0.865, 0.945] | 0.000 | |
Marital status | Not married | Â | Â | 1 | 1 |
Married | -0.0036 | 0.996 | [0.942, 1.054] | 0.900 | |
Parity | 2 or less | Â | Â | 1 | 1 |
3 and above | 0.0519 | 1.053 | [0.993, 1.117] | 0.083 | |
Sex of household head | Male | Â | Â | 1 | 1 |
Female | -0.0345 | 0.966 | [0.925,1.009] | 0.117 |